(4R,5R,24'S,25'R)-N-3'α,7'α,12'α-triacetoxy-24'-hydroxy-5'β-cholestan-26'-oyl-4-methyl-5-phenyloxazolid-2-one 、
苯甲酸 在
三苯基膦 、
偶氮二甲酸二乙酯 作用下,
以
苯 为溶剂,
反应 72.0h,
以37%的产率得到Benzoic acid (1R,4R)-1-[(R)-1-methyl-2-((4R,5S)-4-methyl-2-oxo-5-phenyl-oxazolidin-3-yl)-2-oxo-ethyl]-4-((3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-3,7,12-triacetoxy-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-pentyl ester